I haven’t gotten a good picture of the new LED taillight on my FJ600 yet, but it’s pretty bright. I can’t see it while I’m riding, of course, but it’s using 20-degree LEDs aimed just slightly above the horizontal, so it should do a good job of getting the attention of the driver behind me.

I will leave this unit installed, since it is a good auxiliary brake light, but the point was to prototype the full replacement taillights I want to build for Adam’s bike and my Maxim. It is clear that I will need a mixture of wide- and narrow-angle LEDs, perhaps a curved mounting surface, and possibly a diffusing screen.